I_ Army Marshals f|F Rockel Wizards For Sands Testbators uquor-ily to n this •lc gu-;ecma; ! that other.to an-len, a high-is a-* citymce.WASHINGTON, March 1 — lt;AP) - The army marshaled its lop rocket and radar wizards today for a dress rehearsal drfehse against pilot-less atomic missiles, hurtling down from .90 miles above the earth.. The rockel men will, send 3,009* mile- an- hour German V-2's into the stratosphere from the White Sands proving ground in the New Mexico desert.A1 lack Danger The .radar men will try To track them by -very known means ofj elctlronlc detection, including de-Judge willo was•liable f Su-. Mb-dy to erna-id.a be-inoreview* used recently to bounce beams off the moon.If the radar technicians succeed, a war department announcement said, “danger of atom bonihnr.J-ment °f °Ur CitleB and ,ndufl“ trail centers by long-range stratosphere rockets may be considerably Ii'.a*tfned” — because radar-guided interceptor rockets can be designed to pick off th- atomic missiles high In the heavens.May b* Meld Soon The teats have been scheduled for n6.it summer, but will be held sooner If possible, the department disclosed.The army ordnance department will set nff fifteen or more V-2's 3ei7.-d in Germany at the War’s end and assembled in this countrv with llie aid of Ucrmsn scientists and. technicians; ... -• The air forces and the ‘ signal dotps vill haVe’chbrgt of'thh radar tracking.'d has sine1 printh the ahry.after ound id in fropT in me uapsrC Of*V -liSok Quick Pitted ton 4. - r\ Brig. Gen. Wm, L. Richnr-rtsihti chief of the AAR guided missiles division, said .a means must be lint Ihur.d to defend our county ;ab:- against d sudden enemy rockel attack, und tMa must be don? as cnr quickly as possible. .. neer • * u’ant to dcvoJp a means Irop. whereby we can intercept incom-* j mg enemy rockets in mid-air. We off I can no,T16Po to do this, however* A}; until we discover’a method 'of hUr-| traclnB their course through the mild 3ky “nd P**e-determining their nrcmiii, rn!ch:.....ihftj : Design Counter attack c at j -once we aftcoinpIisil thilJ u wSl,Iter j he possible to design n 'counter*! apl-! attack' rocket which will he con-1 *as-' trolled hy radar and wilt be cap-1 ahd! able of intercepting lb- enemy] run t ro *ket at n predetermined poinl in j re- j its course.'' . - •i In the bombardment of London.; j AnLWerp and Liege in th« latter! ‘ry i stage? of the war..the V-2'5 ranged ft6rja* f„r Ds 200 miles. Official estl-flay | mutes were that their maximum era; | altitude in flight was 60 miles.* The war department announcement, however, sBid the rockets In Ida. the white 9anda ' tests were ex-len- pecteB to arc 90 miles high,, a’iug-. of gcstion ihat th*ir range has been tico Increased gr-atly.icl-Mtvi »